Crusher



T. F. PHILIPPI.

CRUSHE'R.

APPLICATION FILED Nov. 23, 1917.

1,333,727. I Patented Mar. 16,1920.

mvenbdr-z T. r. Fnm i THEODORE F. PHILIPPI, OF EAST ST. LOUIS, ILLINOIS.

CRUSHER.

Specification of Letters Patent.

Patented Mar. 16, 1920.

Application filed November 23, 1917. Serial No. 203,524.

- To aZZ whom it may concern:

Be it known that I, THEODORE F. PHI- LIPPI, a citizen of the UnitedStates of America, a resident of East St. Louis, in the county of St.Clair, State of Illinois, have invented certain new and usefulImprovements in Crushers, of which the following is a full, clear, andexact description, reference being had to the accompanying drawing,forming apart of this specification.

My invention :relates to improvements in crushers, the object being toprovide a strong and durable means for crushing, or hammering, andbreaking coal and other materials. The new structure preferably includesa crushing ring made of hard mate: rial which will not rapidly wear awayin service, and this hard material is preferably reinforced by a ringmade of strong material which does not engage the material to becrushed. More specifically stated, the periphery of the crushing ring isprovided with an annular row of projecting crushing elements adapted tohammer the material to be crushed. I have found that some materials,including coal, can be most effectively acted upon by a CIllShQIROf thiskind. However, owing to the manner in which the projecting crushingelements repeatedly hammer and break the material, therino is subjectedto several stresses, and the riction due to engagement with thema-terlal tends to rapidly wear away the projecting crushing elements,or hammers. To overcome the undesirable results-of friction, I

. preferably make the main body of the crushing ring of hard andinexpensive material, such as chilled cast iron, and to provide thedesired strength, this frangible material is- The crushing device hereinshown com-.

prises a. housing 1, a rotary shaftv 2 mounted in said housing, and anarcuate grate 3 arranged in the housing. A rotary carrier i, arranged inthe housing and fixed to the rotary shaft 2, may be provlded with anydesired numberof arms 5, each having a pin '6 and acrushing ring Aloosely mounted on said pm. The pin 6 extends into the opening 7 formedin the crushing ring.

The periphery of each crushing ring A is preferably corrugated toprovide an annular row of pro ecting crushing elements, or hammers, 8adapted to str ke or hammer the material to be crushed or broken.

The shaft 2 may be driven by any suitable power mechanism with theresult of causing th'e crushing ring, or rings, A to travel around theaxis of the shaft. Each crushing ring A also rotates about its own axis,and the projecting crushing elements, or hammers, 8 repeatedly hammerand break the material to be crushed. Each projecting crushing element,or hammer, 8 is preferably in the form of a wedge-shaped rib,arrangedtransversely of the ring A to provide an elongated taperinghammer. Each of these projecting elements is rounded at its outer edgeas shown in Fig. II.

Each crushing ring A is preferably made of hard frangible metal, such aschilled cast iron, and a reinforcing ring 9 made of relatively strongmaterial, such as wrought iron, inclosed by said hard frangible metal.

I claim A. ring of the character described having an annular row ofprojecting hammersadapted to successively strike the material to bebroken, said projecting hammers and the body of said ringbeing made ofchilled cast iron, and a reinforcing ring inclose'd by said chilled castiron, each of said projecting hammers being in the form of awedgeshaped'rib rounded at its outer edge and arranged transversely ofthe ring to'provide an elongated tapering hammer, and the reinforcingring being surrounded by and located adjacent to the annular row ofprojecting hammers.

. In testimony that claim the foregoing'l I hereunto afiix my signature.

THEODORE r. PHILIPPE.

